./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 23:40:33,621 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 23:40:33,695 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-11 23:40:33,700 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 23:40:33,700 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 23:40:33,724 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 23:40:33,725 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 23:40:33,725 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 23:40:33,725 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 23:40:33,726 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 23:40:33,726 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 23:40:33,726 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 23:40:33,727 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 23:40:33,727 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 23:40:33,727 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 23:40:33,727 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 23:40:33,728 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 23:40:33,728 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 23:40:33,728 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 23:40:33,728 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 23:40:33,728 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 23:40:33,731 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 23:40:33,731 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 23:40:33,731 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 23:40:33,733 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 23:40:33,733 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 23:40:33,734 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 23:40:33,734 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 23:40:33,734 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 23:40:33,734 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 23:40:33,734 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 23:40:33,734 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 23:40:33,734 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 23:40:33,735 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 23:40:33,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 23:40:33,735 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 23:40:33,735 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 23:40:33,735 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 23:40:33,735 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 23:40:33,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 23:40:33,735 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 23:40:33,736 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 23:40:33,737 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 23:40:33,737 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 23:40:33,737 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 [2024-10-11 23:40:33,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 23:40:33,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 23:40:33,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 23:40:33,974 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 23:40:33,974 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 23:40:33,975 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2024-10-11 23:40:35,211 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 23:40:35,488 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 23:40:35,489 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2024-10-11 23:40:35,507 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/652751f88/84d10ffb545d43c18af9bbea39d35c78/FLAGe6644f35c [2024-10-11 23:40:35,517 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/652751f88/84d10ffb545d43c18af9bbea39d35c78 [2024-10-11 23:40:35,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 23:40:35,520 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 23:40:35,521 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 23:40:35,521 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 23:40:35,526 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 23:40:35,527 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:40:35" (1/1) ... [2024-10-11 23:40:35,528 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1febafc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:40:35, skipping insertion in model container [2024-10-11 23:40:35,528 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:40:35" (1/1) ... [2024-10-11 23:40:35,576 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 23:40:36,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 23:40:36,089 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 23:40:36,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 23:40:36,224 INFO L204 MainTranslator]: Completed translation [2024-10-11 23:40:36,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:40:36 WrapperNode [2024-10-11 23:40:36,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 23:40:36,225 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 23:40:36,225 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 23:40:36,225 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 23:40:36,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:40:36" (1/1) ... [2024-10-11 23:40:36,269 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:40:36" (1/1) ... [2024-10-11 23:40:36,323 INFO L138 Inliner]: procedures = 282, calls = 343, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1648 [2024-10-11 23:40:36,323 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 23:40:36,324 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 23:40:36,324 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 23:40:36,324 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 23:40:36,333 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:40:36" (1/1) ... [2024-10-11 23:40:36,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:40:36" (1/1) ... [2024-10-11 23:40:36,346 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:40:36" (1/1) ... [2024-10-11 23:40:36,445 INFO L175 MemorySlicer]: Split 309 memory accesses to 4 slices as follows [2, 34, 3, 270]. 87 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 63 writes are split as follows [0, 4, 2, 57]. [2024-10-11 23:40:36,449 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:40:36" (1/1) ... [2024-10-11 23:40:36,449 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:40:36" (1/1) ... [2024-10-11 23:40:36,523 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:40:36" (1/1) ... [2024-10-11 23:40:36,532 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:40:36" (1/1) ... [2024-10-11 23:40:36,537 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:40:36" (1/1) ... [2024-10-11 23:40:36,543 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:40:36" (1/1) ... [2024-10-11 23:40:36,554 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 23:40:36,558 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 23:40:36,558 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 23:40:36,560 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 23:40:36,560 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:40:36" (1/1) ... [2024-10-11 23:40:36,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 23:40:36,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:40:36,593 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 23:40:36,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 23:40:36,633 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-10-11 23:40:36,633 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-10-11 23:40:36,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 23:40:36,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-11 23:40:36,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-11 23:40:36,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-11 23:40:36,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-11 23:40:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 23:40:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-10-11 23:40:36,634 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-10-11 23:40:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 23:40:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 23:40:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 23:40:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-11 23:40:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-11 23:40:36,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-11 23:40:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 23:40:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 23:40:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 23:40:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-11 23:40:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 23:40:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 23:40:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-10-11 23:40:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-10-11 23:40:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 23:40:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 23:40:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-11 23:40:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-11 23:40:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-10-11 23:40:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-10-11 23:40:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 23:40:36,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 23:40:36,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 23:40:36,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 23:40:36,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 23:40:36,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 23:40:36,807 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 23:40:36,809 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 23:40:38,022 INFO L? ?]: Removed 376 outVars from TransFormulas that were not future-live. [2024-10-11 23:40:38,025 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 23:40:38,075 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 23:40:38,075 INFO L314 CfgBuilder]: Removed 72 assume(true) statements. [2024-10-11 23:40:38,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:40:38 BoogieIcfgContainer [2024-10-11 23:40:38,076 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 23:40:38,080 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 23:40:38,080 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 23:40:38,083 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 23:40:38,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 11:40:35" (1/3) ... [2024-10-11 23:40:38,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24cb9828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:40:38, skipping insertion in model container [2024-10-11 23:40:38,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:40:36" (2/3) ... [2024-10-11 23:40:38,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24cb9828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:40:38, skipping insertion in model container [2024-10-11 23:40:38,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:40:38" (3/3) ... [2024-10-11 23:40:38,086 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test6-2.i [2024-10-11 23:40:38,100 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 23:40:38,100 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-10-11 23:40:38,165 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 23:40:38,170 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4e050d95, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 23:40:38,170 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-10-11 23:40:38,175 INFO L276 IsEmpty]: Start isEmpty. Operand has 490 states, 451 states have (on average 1.6208425720620843) internal successors, (731), 468 states have internal predecessors, (731), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-11 23:40:38,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 23:40:38,179 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:40:38,180 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 23:40:38,180 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:40:38,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:40:38,205 INFO L85 PathProgramCache]: Analyzing trace with hash 612313603, now seen corresponding path program 1 times [2024-10-11 23:40:38,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:40:38,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904393491] [2024-10-11 23:40:38,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:40:38,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:40:38,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:38,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:40:38,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:40:38,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904393491] [2024-10-11 23:40:38,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904393491] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:40:38,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:40:38,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:40:38,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556786393] [2024-10-11 23:40:38,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:40:38,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 23:40:38,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:40:38,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 23:40:38,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 23:40:38,399 INFO L87 Difference]: Start difference. First operand has 490 states, 451 states have (on average 1.6208425720620843) internal successors, (731), 468 states have internal predecessors, (731), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:40:38,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:40:38,482 INFO L93 Difference]: Finished difference Result 974 states and 1548 transitions. [2024-10-11 23:40:38,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 23:40:38,486 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-11 23:40:38,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:40:38,497 INFO L225 Difference]: With dead ends: 974 [2024-10-11 23:40:38,498 INFO L226 Difference]: Without dead ends: 478 [2024-10-11 23:40:38,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 23:40:38,509 INFO L432 NwaCegarLoop]: 675 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 23:40:38,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 675 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 23:40:38,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-10-11 23:40:38,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2024-10-11 23:40:38,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 445 states have (on average 1.447191011235955) internal successors, (644), 459 states have internal predecessors, (644), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-11 23:40:38,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 674 transitions. [2024-10-11 23:40:38,565 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 674 transitions. Word has length 6 [2024-10-11 23:40:38,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:40:38,565 INFO L471 AbstractCegarLoop]: Abstraction has 478 states and 674 transitions. [2024-10-11 23:40:38,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:40:38,566 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 674 transitions. [2024-10-11 23:40:38,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 23:40:38,566 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:40:38,566 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 23:40:38,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 23:40:38,567 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:40:38,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:40:38,567 INFO L85 PathProgramCache]: Analyzing trace with hash 612315525, now seen corresponding path program 1 times [2024-10-11 23:40:38,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:40:38,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18497797] [2024-10-11 23:40:38,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:40:38,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:40:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 23:40:38,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [974050665] [2024-10-11 23:40:38,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:40:38,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:40:38,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:40:38,609 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:40:38,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 23:40:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:38,770 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 23:40:38,776 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:40:38,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 23:40:38,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:40:38,851 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 23:40:38,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:40:38,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18497797] [2024-10-11 23:40:38,853 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 23:40:38,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974050665] [2024-10-11 23:40:38,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974050665] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:40:38,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:40:38,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:40:38,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991434724] [2024-10-11 23:40:38,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:40:38,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:40:38,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:40:38,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:40:38,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:40:38,856 INFO L87 Difference]: Start difference. First operand 478 states and 674 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:40:39,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:40:39,009 INFO L93 Difference]: Finished difference Result 927 states and 1320 transitions. [2024-10-11 23:40:39,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:40:39,010 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-11 23:40:39,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:40:39,013 INFO L225 Difference]: With dead ends: 927 [2024-10-11 23:40:39,014 INFO L226 Difference]: Without dead ends: 925 [2024-10-11 23:40:39,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 23:40:39,018 INFO L432 NwaCegarLoop]: 683 mSDtfsCounter, 611 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 1996 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 23:40:39,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 1996 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 23:40:39,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2024-10-11 23:40:39,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 484. [2024-10-11 23:40:39,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 451 states have (on average 1.4434589800443458) internal successors, (651), 465 states have internal predecessors, (651), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-11 23:40:39,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 681 transitions. [2024-10-11 23:40:39,052 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 681 transitions. Word has length 6 [2024-10-11 23:40:39,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:40:39,052 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 681 transitions. [2024-10-11 23:40:39,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:40:39,053 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 681 transitions. [2024-10-11 23:40:39,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-11 23:40:39,054 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:40:39,054 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:40:39,068 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 23:40:39,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:40:39,259 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:40:39,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:40:39,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1096986538, now seen corresponding path program 1 times [2024-10-11 23:40:39,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:40:39,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068033471] [2024-10-11 23:40:39,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:40:39,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:40:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:39,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 23:40:39,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:39,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 23:40:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:39,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 23:40:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:39,483 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 23:40:39,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:40:39,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068033471] [2024-10-11 23:40:39,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068033471] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:40:39,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:40:39,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 23:40:39,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928699098] [2024-10-11 23:40:39,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:40:39,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:40:39,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:40:39,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:40:39,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:40:39,490 INFO L87 Difference]: Start difference. First operand 484 states and 681 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 23:40:39,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:40:39,624 INFO L93 Difference]: Finished difference Result 1175 states and 1671 transitions. [2024-10-11 23:40:39,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:40:39,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 33 [2024-10-11 23:40:39,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:40:39,628 INFO L225 Difference]: With dead ends: 1175 [2024-10-11 23:40:39,629 INFO L226 Difference]: Without dead ends: 924 [2024-10-11 23:40:39,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 23:40:39,631 INFO L432 NwaCegarLoop]: 701 mSDtfsCounter, 612 mSDsluCounter, 1334 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 2035 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 23:40:39,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 2035 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 23:40:39,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2024-10-11 23:40:39,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 484. [2024-10-11 23:40:39,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 451 states have (on average 1.441241685144124) internal successors, (650), 465 states have internal predecessors, (650), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-11 23:40:39,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 680 transitions. [2024-10-11 23:40:39,649 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 680 transitions. Word has length 33 [2024-10-11 23:40:39,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:40:39,650 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 680 transitions. [2024-10-11 23:40:39,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 23:40:39,650 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 680 transitions. [2024-10-11 23:40:39,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-11 23:40:39,653 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:40:39,653 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:40:39,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 23:40:39,654 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:40:39,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:40:39,655 INFO L85 PathProgramCache]: Analyzing trace with hash -630495610, now seen corresponding path program 1 times [2024-10-11 23:40:39,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:40:39,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634241324] [2024-10-11 23:40:39,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:40:39,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:40:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:39,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:40:39,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:40:39,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634241324] [2024-10-11 23:40:39,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634241324] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:40:39,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:40:39,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 23:40:39,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010243084] [2024-10-11 23:40:39,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:40:39,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:40:39,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:40:39,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:40:39,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:40:39,845 INFO L87 Difference]: Start difference. First operand 484 states and 680 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:40:39,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:40:39,929 INFO L93 Difference]: Finished difference Result 919 states and 1287 transitions. [2024-10-11 23:40:39,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 23:40:39,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-10-11 23:40:39,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:40:39,931 INFO L225 Difference]: With dead ends: 919 [2024-10-11 23:40:39,931 INFO L226 Difference]: Without dead ends: 442 [2024-10-11 23:40:39,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 23:40:39,933 INFO L432 NwaCegarLoop]: 564 mSDtfsCounter, 30 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 23:40:39,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1675 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 23:40:39,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-10-11 23:40:39,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2024-10-11 23:40:39,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 409 states have (on average 1.4009779951100245) internal successors, (573), 423 states have internal predecessors, (573), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-11 23:40:39,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 603 transitions. [2024-10-11 23:40:39,945 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 603 transitions. Word has length 62 [2024-10-11 23:40:39,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:40:39,946 INFO L471 AbstractCegarLoop]: Abstraction has 442 states and 603 transitions. [2024-10-11 23:40:39,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:40:39,946 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 603 transitions. [2024-10-11 23:40:39,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-11 23:40:39,947 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:40:39,947 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:40:39,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 23:40:39,947 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:40:39,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:40:39,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1694695558, now seen corresponding path program 1 times [2024-10-11 23:40:39,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:40:39,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607889307] [2024-10-11 23:40:39,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:40:39,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:40:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:40,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:40:40,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:40:40,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607889307] [2024-10-11 23:40:40,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607889307] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:40:40,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:40:40,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:40:40,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971251952] [2024-10-11 23:40:40,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:40:40,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:40:40,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:40:40,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:40:40,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:40:40,144 INFO L87 Difference]: Start difference. First operand 442 states and 603 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:40:40,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:40:40,203 INFO L93 Difference]: Finished difference Result 811 states and 1114 transitions. [2024-10-11 23:40:40,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:40:40,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-10-11 23:40:40,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:40:40,209 INFO L225 Difference]: With dead ends: 811 [2024-10-11 23:40:40,210 INFO L226 Difference]: Without dead ends: 807 [2024-10-11 23:40:40,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 23:40:40,211 INFO L432 NwaCegarLoop]: 580 mSDtfsCounter, 437 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1731 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 23:40:40,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 1731 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 23:40:40,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2024-10-11 23:40:40,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 799. [2024-10-11 23:40:40,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 758 states have (on average 1.4063324538258575) internal successors, (1066), 774 states have internal predecessors, (1066), 22 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (22), 18 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-11 23:40:40,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1110 transitions. [2024-10-11 23:40:40,234 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1110 transitions. Word has length 62 [2024-10-11 23:40:40,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:40:40,235 INFO L471 AbstractCegarLoop]: Abstraction has 799 states and 1110 transitions. [2024-10-11 23:40:40,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:40:40,236 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1110 transitions. [2024-10-11 23:40:40,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-11 23:40:40,237 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:40:40,237 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:40:40,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 23:40:40,239 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:40:40,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:40:40,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1581839952, now seen corresponding path program 1 times [2024-10-11 23:40:40,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:40:40,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574379222] [2024-10-11 23:40:40,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:40:40,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:40:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:40,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 23:40:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:40,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:40:40,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:40:40,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574379222] [2024-10-11 23:40:40,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574379222] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:40:40,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:40:40,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 23:40:40,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990702302] [2024-10-11 23:40:40,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:40:40,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:40:40,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:40:40,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:40:40,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:40:40,413 INFO L87 Difference]: Start difference. First operand 799 states and 1110 transitions. Second operand has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 23:40:40,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:40:40,550 INFO L93 Difference]: Finished difference Result 1068 states and 1481 transitions. [2024-10-11 23:40:40,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 23:40:40,550 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2024-10-11 23:40:40,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:40:40,555 INFO L225 Difference]: With dead ends: 1068 [2024-10-11 23:40:40,556 INFO L226 Difference]: Without dead ends: 1066 [2024-10-11 23:40:40,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 23:40:40,557 INFO L432 NwaCegarLoop]: 565 mSDtfsCounter, 489 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 23:40:40,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 1663 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 23:40:40,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2024-10-11 23:40:40,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1056. [2024-10-11 23:40:40,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 1002 states have (on average 1.4121756487025947) internal successors, (1415), 1019 states have internal predecessors, (1415), 32 states have call successors, (32), 10 states have call predecessors, (32), 8 states have return successors, (32), 28 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-11 23:40:40,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1479 transitions. [2024-10-11 23:40:40,584 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1479 transitions. Word has length 71 [2024-10-11 23:40:40,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:40:40,585 INFO L471 AbstractCegarLoop]: Abstraction has 1056 states and 1479 transitions. [2024-10-11 23:40:40,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 23:40:40,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1479 transitions. [2024-10-11 23:40:40,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-11 23:40:40,587 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:40:40,587 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:40:40,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 23:40:40,587 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:40:40,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:40:40,587 INFO L85 PathProgramCache]: Analyzing trace with hash 318405018, now seen corresponding path program 1 times [2024-10-11 23:40:40,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:40:40,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232327297] [2024-10-11 23:40:40,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:40:40,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:40:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:40,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 23:40:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:40,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 23:40:40,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:40,899 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:40:40,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:40:40,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232327297] [2024-10-11 23:40:40,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232327297] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:40:40,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887632793] [2024-10-11 23:40:40,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:40:40,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:40:40,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:40:40,903 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:40:40,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 23:40:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:41,115 INFO L255 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 23:40:41,119 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:40:41,186 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:40:41,188 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 23:40:41,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887632793] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:40:41,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 23:40:41,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-10-11 23:40:41,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476076340] [2024-10-11 23:40:41,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:40:41,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 23:40:41,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:40:41,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 23:40:41,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-10-11 23:40:41,190 INFO L87 Difference]: Start difference. First operand 1056 states and 1479 transitions. Second operand has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 23:40:41,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:40:41,268 INFO L93 Difference]: Finished difference Result 1427 states and 1991 transitions. [2024-10-11 23:40:41,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 23:40:41,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 78 [2024-10-11 23:40:41,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:40:41,273 INFO L225 Difference]: With dead ends: 1427 [2024-10-11 23:40:41,273 INFO L226 Difference]: Without dead ends: 1426 [2024-10-11 23:40:41,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-10-11 23:40:41,274 INFO L432 NwaCegarLoop]: 573 mSDtfsCounter, 555 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 1653 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 23:40:41,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 1653 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 23:40:41,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2024-10-11 23:40:41,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1377. [2024-10-11 23:40:41,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 1316 states have (on average 1.4141337386018238) internal successors, (1861), 1335 states have internal predecessors, (1861), 37 states have call successors, (37), 13 states have call predecessors, (37), 10 states have return successors, (37), 30 states have call predecessors, (37), 37 states have call successors, (37) [2024-10-11 23:40:41,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 1935 transitions. [2024-10-11 23:40:41,306 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 1935 transitions. Word has length 78 [2024-10-11 23:40:41,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:40:41,306 INFO L471 AbstractCegarLoop]: Abstraction has 1377 states and 1935 transitions. [2024-10-11 23:40:41,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 23:40:41,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 1935 transitions. [2024-10-11 23:40:41,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-11 23:40:41,307 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:40:41,307 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:40:41,321 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 23:40:41,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:40:41,508 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:40:41,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:40:41,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1280621007, now seen corresponding path program 1 times [2024-10-11 23:40:41,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:40:41,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105662026] [2024-10-11 23:40:41,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:40:41,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:40:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:41,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 23:40:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:41,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 23:40:41,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:41,824 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:40:41,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:40:41,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105662026] [2024-10-11 23:40:41,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105662026] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:40:41,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762347355] [2024-10-11 23:40:41,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:40:41,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:40:41,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:40:41,826 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:40:41,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 23:40:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:42,032 INFO L255 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 23:40:42,035 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:40:42,154 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:40:42,154 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 23:40:42,342 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:40:42,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762347355] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 23:40:42,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 23:40:42,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 18 [2024-10-11 23:40:42,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151729606] [2024-10-11 23:40:42,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 23:40:42,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-11 23:40:42,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:40:42,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-11 23:40:42,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2024-10-11 23:40:42,344 INFO L87 Difference]: Start difference. First operand 1377 states and 1935 transitions. Second operand has 19 states, 18 states have (on average 11.833333333333334) internal successors, (213), 15 states have internal predecessors, (213), 5 states have call successors, (8), 7 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-11 23:40:43,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:40:43,882 INFO L93 Difference]: Finished difference Result 3721 states and 5212 transitions. [2024-10-11 23:40:43,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-10-11 23:40:43,882 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 11.833333333333334) internal successors, (213), 15 states have internal predecessors, (213), 5 states have call successors, (8), 7 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) Word has length 79 [2024-10-11 23:40:43,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:40:43,897 INFO L225 Difference]: With dead ends: 3721 [2024-10-11 23:40:43,897 INFO L226 Difference]: Without dead ends: 3719 [2024-10-11 23:40:43,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=542, Invalid=1350, Unknown=0, NotChecked=0, Total=1892 [2024-10-11 23:40:43,901 INFO L432 NwaCegarLoop]: 634 mSDtfsCounter, 5594 mSDsluCounter, 6081 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5619 SdHoareTripleChecker+Valid, 6715 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 23:40:43,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5619 Valid, 6715 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 23:40:43,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3719 states. [2024-10-11 23:40:43,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3719 to 2752. [2024-10-11 23:40:43,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2752 states, 2632 states have (on average 1.3962765957446808) internal successors, (3675), 2653 states have internal predecessors, (3675), 83 states have call successors, (83), 28 states have call predecessors, (83), 23 states have return successors, (106), 70 states have call predecessors, (106), 83 states have call successors, (106) [2024-10-11 23:40:43,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2752 states to 2752 states and 3864 transitions. [2024-10-11 23:40:43,996 INFO L78 Accepts]: Start accepts. Automaton has 2752 states and 3864 transitions. Word has length 79 [2024-10-11 23:40:43,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:40:43,997 INFO L471 AbstractCegarLoop]: Abstraction has 2752 states and 3864 transitions. [2024-10-11 23:40:43,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 11.833333333333334) internal successors, (213), 15 states have internal predecessors, (213), 5 states have call successors, (8), 7 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-11 23:40:43,998 INFO L276 IsEmpty]: Start isEmpty. Operand 2752 states and 3864 transitions. [2024-10-11 23:40:43,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-11 23:40:43,998 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:40:43,999 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:40:44,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 23:40:44,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:40:44,203 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:40:44,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:40:44,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1237871349, now seen corresponding path program 1 times [2024-10-11 23:40:44,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:40:44,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832738040] [2024-10-11 23:40:44,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:40:44,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:40:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:44,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:40:44,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:40:44,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832738040] [2024-10-11 23:40:44,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832738040] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:40:44,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:40:44,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:40:44,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573433031] [2024-10-11 23:40:44,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:40:44,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 23:40:44,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:40:44,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 23:40:44,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 23:40:44,296 INFO L87 Difference]: Start difference. First operand 2752 states and 3864 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:40:44,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:40:44,438 INFO L93 Difference]: Finished difference Result 5765 states and 8133 transitions. [2024-10-11 23:40:44,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 23:40:44,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-10-11 23:40:44,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:40:44,448 INFO L225 Difference]: With dead ends: 5765 [2024-10-11 23:40:44,449 INFO L226 Difference]: Without dead ends: 3020 [2024-10-11 23:40:44,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 23:40:44,453 INFO L432 NwaCegarLoop]: 808 mSDtfsCounter, 342 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1356 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 23:40:44,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1356 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 23:40:44,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3020 states. [2024-10-11 23:40:44,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3020 to 2909. [2024-10-11 23:40:44,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2909 states, 2795 states have (on average 1.4089445438282648) internal successors, (3938), 2815 states have internal predecessors, (3938), 80 states have call successors, (80), 24 states have call predecessors, (80), 20 states have return successors, (102), 69 states have call predecessors, (102), 80 states have call successors, (102) [2024-10-11 23:40:44,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2909 states to 2909 states and 4120 transitions. [2024-10-11 23:40:44,521 INFO L78 Accepts]: Start accepts. Automaton has 2909 states and 4120 transitions. Word has length 80 [2024-10-11 23:40:44,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:40:44,521 INFO L471 AbstractCegarLoop]: Abstraction has 2909 states and 4120 transitions. [2024-10-11 23:40:44,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:40:44,521 INFO L276 IsEmpty]: Start isEmpty. Operand 2909 states and 4120 transitions. [2024-10-11 23:40:44,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-11 23:40:44,523 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:40:44,523 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:40:44,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 23:40:44,523 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:40:44,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:40:44,523 INFO L85 PathProgramCache]: Analyzing trace with hash 593112272, now seen corresponding path program 1 times [2024-10-11 23:40:44,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:40:44,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007521584] [2024-10-11 23:40:44,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:40:44,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:40:44,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:44,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 23:40:44,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:44,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 23:40:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:44,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 23:40:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:44,808 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 23:40:44,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:40:44,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007521584] [2024-10-11 23:40:44,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007521584] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:40:44,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929696649] [2024-10-11 23:40:44,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:40:44,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:40:44,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:40:44,810 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:40:44,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 23:40:45,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:45,034 INFO L255 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 23:40:45,038 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:40:45,082 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:40:45,082 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 23:40:45,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929696649] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:40:45,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 23:40:45,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-10-11 23:40:45,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358158429] [2024-10-11 23:40:45,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:40:45,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:40:45,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:40:45,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:40:45,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-11 23:40:45,084 INFO L87 Difference]: Start difference. First operand 2909 states and 4120 transitions. Second operand has 4 states, 3 states have (on average 26.666666666666668) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 23:40:45,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:40:45,180 INFO L93 Difference]: Finished difference Result 2909 states and 4120 transitions. [2024-10-11 23:40:45,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 23:40:45,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 26.666666666666668) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 87 [2024-10-11 23:40:45,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:40:45,189 INFO L225 Difference]: With dead ends: 2909 [2024-10-11 23:40:45,189 INFO L226 Difference]: Without dead ends: 2908 [2024-10-11 23:40:45,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-11 23:40:45,191 INFO L432 NwaCegarLoop]: 578 mSDtfsCounter, 1121 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 23:40:45,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1121 Valid, 578 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 23:40:45,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2024-10-11 23:40:45,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 2908. [2024-10-11 23:40:45,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2908 states, 2795 states have (on average 1.4071556350626118) internal successors, (3933), 2814 states have internal predecessors, (3933), 80 states have call successors, (80), 24 states have call predecessors, (80), 20 states have return successors, (102), 69 states have call predecessors, (102), 80 states have call successors, (102) [2024-10-11 23:40:45,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2908 states to 2908 states and 4115 transitions. [2024-10-11 23:40:45,292 INFO L78 Accepts]: Start accepts. Automaton has 2908 states and 4115 transitions. Word has length 87 [2024-10-11 23:40:45,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:40:45,292 INFO L471 AbstractCegarLoop]: Abstraction has 2908 states and 4115 transitions. [2024-10-11 23:40:45,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 26.666666666666668) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 23:40:45,293 INFO L276 IsEmpty]: Start isEmpty. Operand 2908 states and 4115 transitions. [2024-10-11 23:40:45,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-11 23:40:45,293 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:40:45,294 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:40:45,307 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 23:40:45,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-11 23:40:45,495 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:40:45,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:40:45,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1206611317, now seen corresponding path program 1 times [2024-10-11 23:40:45,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:40:45,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580197777] [2024-10-11 23:40:45,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:40:45,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:40:45,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:45,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 23:40:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:45,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 23:40:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:45,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 23:40:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:45,760 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 23:40:45,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:40:45,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580197777] [2024-10-11 23:40:45,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580197777] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:40:45,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918941649] [2024-10-11 23:40:45,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:40:45,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:40:45,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:40:45,762 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:40:45,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 23:40:45,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:45,987 INFO L255 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 23:40:45,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:40:46,089 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:40:46,089 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 23:40:46,229 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 23:40:46,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918941649] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 23:40:46,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 23:40:46,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 5] total 13 [2024-10-11 23:40:46,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188363301] [2024-10-11 23:40:46,230 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 23:40:46,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 23:40:46,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:40:46,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 23:40:46,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-10-11 23:40:46,233 INFO L87 Difference]: Start difference. First operand 2908 states and 4115 transitions. Second operand has 14 states, 13 states have (on average 17.076923076923077) internal successors, (222), 12 states have internal predecessors, (222), 5 states have call successors, (11), 8 states have call predecessors, (11), 5 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-10-11 23:40:46,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:40:46,985 INFO L93 Difference]: Finished difference Result 5818 states and 8241 transitions. [2024-10-11 23:40:46,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 23:40:46,986 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 17.076923076923077) internal successors, (222), 12 states have internal predecessors, (222), 5 states have call successors, (11), 8 states have call predecessors, (11), 5 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 88 [2024-10-11 23:40:46,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:40:47,004 INFO L225 Difference]: With dead ends: 5818 [2024-10-11 23:40:47,004 INFO L226 Difference]: Without dead ends: 5817 [2024-10-11 23:40:47,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=231, Invalid=471, Unknown=0, NotChecked=0, Total=702 [2024-10-11 23:40:47,008 INFO L432 NwaCegarLoop]: 545 mSDtfsCounter, 2434 mSDsluCounter, 4172 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2453 SdHoareTripleChecker+Valid, 4717 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 23:40:47,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2453 Valid, 4717 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 23:40:47,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5817 states. [2024-10-11 23:40:47,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5817 to 5384. [2024-10-11 23:40:47,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5384 states, 5162 states have (on average 1.408175125920186) internal successors, (7269), 5186 states have internal predecessors, (7269), 159 states have call successors, (159), 56 states have call predecessors, (159), 50 states have return successors, (197), 141 states have call predecessors, (197), 159 states have call successors, (197) [2024-10-11 23:40:47,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5384 states to 5384 states and 7625 transitions. [2024-10-11 23:40:47,134 INFO L78 Accepts]: Start accepts. Automaton has 5384 states and 7625 transitions. Word has length 88 [2024-10-11 23:40:47,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:40:47,134 INFO L471 AbstractCegarLoop]: Abstraction has 5384 states and 7625 transitions. [2024-10-11 23:40:47,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 17.076923076923077) internal successors, (222), 12 states have internal predecessors, (222), 5 states have call successors, (11), 8 states have call predecessors, (11), 5 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-10-11 23:40:47,134 INFO L276 IsEmpty]: Start isEmpty. Operand 5384 states and 7625 transitions. [2024-10-11 23:40:47,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-11 23:40:47,136 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:40:47,136 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:40:47,150 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 23:40:47,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-11 23:40:47,337 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:40:47,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:40:47,338 INFO L85 PathProgramCache]: Analyzing trace with hash -2038052979, now seen corresponding path program 1 times [2024-10-11 23:40:47,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:40:47,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561207627] [2024-10-11 23:40:47,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:40:47,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:40:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:47,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 23:40:47,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:47,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 23:40:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:47,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 23:40:47,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:47,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 23:40:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:47,662 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 23:40:47,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:40:47,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561207627] [2024-10-11 23:40:47,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561207627] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:40:47,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:40:47,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 23:40:47,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921103863] [2024-10-11 23:40:47,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:40:47,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 23:40:47,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:40:47,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 23:40:47,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 23:40:47,664 INFO L87 Difference]: Start difference. First operand 5384 states and 7625 transitions. Second operand has 6 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 23:40:48,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:40:48,209 INFO L93 Difference]: Finished difference Result 7610 states and 10842 transitions. [2024-10-11 23:40:48,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 23:40:48,209 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 112 [2024-10-11 23:40:48,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:40:48,241 INFO L225 Difference]: With dead ends: 7610 [2024-10-11 23:40:48,243 INFO L226 Difference]: Without dead ends: 7608 [2024-10-11 23:40:48,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-11 23:40:48,247 INFO L432 NwaCegarLoop]: 535 mSDtfsCounter, 481 mSDsluCounter, 1961 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 2496 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 23:40:48,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 2496 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 23:40:48,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7608 states. [2024-10-11 23:40:48,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7608 to 5552. [2024-10-11 23:40:48,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5552 states, 5321 states have (on average 1.4033076489381695) internal successors, (7467), 5346 states have internal predecessors, (7467), 168 states have call successors, (168), 56 states have call predecessors, (168), 50 states have return successors, (209), 149 states have call predecessors, (209), 168 states have call successors, (209) [2024-10-11 23:40:48,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5552 states to 5552 states and 7844 transitions. [2024-10-11 23:40:48,382 INFO L78 Accepts]: Start accepts. Automaton has 5552 states and 7844 transitions. Word has length 112 [2024-10-11 23:40:48,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:40:48,383 INFO L471 AbstractCegarLoop]: Abstraction has 5552 states and 7844 transitions. [2024-10-11 23:40:48,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-11 23:40:48,383 INFO L276 IsEmpty]: Start isEmpty. Operand 5552 states and 7844 transitions. [2024-10-11 23:40:48,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-11 23:40:48,384 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:40:48,384 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:40:48,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 23:40:48,384 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:40:48,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:40:48,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1963744125, now seen corresponding path program 1 times [2024-10-11 23:40:48,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:40:48,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505471228] [2024-10-11 23:40:48,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:40:48,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:40:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:48,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 23:40:48,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:48,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 23:40:48,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:48,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 23:40:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:48,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 23:40:48,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:48,740 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 23:40:48,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:40:48,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505471228] [2024-10-11 23:40:48,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505471228] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:40:48,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422595943] [2024-10-11 23:40:48,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:40:48,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:40:48,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:40:48,743 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:40:48,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 23:40:49,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:49,043 INFO L255 TraceCheckSpWp]: Trace formula consists of 757 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 23:40:49,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:40:49,142 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-11 23:40:49,142 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 23:40:49,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422595943] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:40:49,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 23:40:49,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-10-11 23:40:49,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98780789] [2024-10-11 23:40:49,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:40:49,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 23:40:49,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:40:49,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 23:40:49,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-10-11 23:40:49,144 INFO L87 Difference]: Start difference. First operand 5552 states and 7844 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 23:40:49,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:40:49,390 INFO L93 Difference]: Finished difference Result 10599 states and 15025 transitions. [2024-10-11 23:40:49,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 23:40:49,391 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 118 [2024-10-11 23:40:49,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:40:49,402 INFO L225 Difference]: With dead ends: 10599 [2024-10-11 23:40:49,402 INFO L226 Difference]: Without dead ends: 5354 [2024-10-11 23:40:49,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-10-11 23:40:49,411 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 82 mSDsluCounter, 2705 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 3266 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 23:40:49,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 3266 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 23:40:49,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5354 states. [2024-10-11 23:40:49,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5354 to 5354. [2024-10-11 23:40:49,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5140 states have (on average 1.4071984435797666) internal successors, (7233), 5163 states have internal predecessors, (7233), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-10-11 23:40:49,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 7582 transitions. [2024-10-11 23:40:49,561 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 7582 transitions. Word has length 118 [2024-10-11 23:40:49,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:40:49,562 INFO L471 AbstractCegarLoop]: Abstraction has 5354 states and 7582 transitions. [2024-10-11 23:40:49,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 23:40:49,562 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 7582 transitions. [2024-10-11 23:40:49,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-11 23:40:49,563 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:40:49,563 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:40:49,577 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 23:40:49,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-11 23:40:49,768 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:40:49,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:40:49,768 INFO L85 PathProgramCache]: Analyzing trace with hash -793576872, now seen corresponding path program 1 times [2024-10-11 23:40:49,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:40:49,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754323546] [2024-10-11 23:40:49,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:40:49,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:40:49,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:50,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 23:40:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:50,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 23:40:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:50,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 23:40:50,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:50,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 23:40:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:50,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 23:40:50,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:50,159 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-11 23:40:50,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:40:50,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754323546] [2024-10-11 23:40:50,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754323546] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:40:50,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097947506] [2024-10-11 23:40:50,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:40:50,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:40:50,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:40:50,161 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:40:50,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 23:40:50,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:50,466 INFO L255 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-10-11 23:40:50,469 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:40:50,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 23:40:50,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 23:40:50,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-10-11 23:40:51,037 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 23:40:51,037 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 23:40:51,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097947506] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:40:51,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 23:40:51,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 16 [2024-10-11 23:40:51,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036530282] [2024-10-11 23:40:51,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:40:51,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 23:40:51,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:40:51,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 23:40:51,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-10-11 23:40:51,039 INFO L87 Difference]: Start difference. First operand 5354 states and 7582 transitions. Second operand has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 10 states have internal predecessors, (105), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 23:40:52,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 23:40:52,151 INFO L93 Difference]: Finished difference Result 12733 states and 18114 transitions. [2024-10-11 23:40:52,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 23:40:52,151 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 10 states have internal predecessors, (105), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 123 [2024-10-11 23:40:52,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 23:40:52,165 INFO L225 Difference]: With dead ends: 12733 [2024-10-11 23:40:52,165 INFO L226 Difference]: Without dead ends: 7424 [2024-10-11 23:40:52,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=105, Invalid=447, Unknown=0, NotChecked=0, Total=552 [2024-10-11 23:40:52,171 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 652 mSDsluCounter, 2876 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 3436 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 23:40:52,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 3436 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 23:40:52,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7424 states. [2024-10-11 23:40:52,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7424 to 5354. [2024-10-11 23:40:52,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5140 states have (on average 1.4070038910505838) internal successors, (7232), 5163 states have internal predecessors, (7232), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-10-11 23:40:52,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 7581 transitions. [2024-10-11 23:40:52,295 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 7581 transitions. Word has length 123 [2024-10-11 23:40:52,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 23:40:52,295 INFO L471 AbstractCegarLoop]: Abstraction has 5354 states and 7581 transitions. [2024-10-11 23:40:52,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 10 states have internal predecessors, (105), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-11 23:40:52,296 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 7581 transitions. [2024-10-11 23:40:52,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-11 23:40:52,297 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 23:40:52,297 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:40:52,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-11 23:40:52,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:40:52,498 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 23:40:52,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:40:52,498 INFO L85 PathProgramCache]: Analyzing trace with hash 817925879, now seen corresponding path program 1 times [2024-10-11 23:40:52,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:40:52,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501764051] [2024-10-11 23:40:52,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:40:52,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:40:52,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:52,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-11 23:40:52,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:52,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 23:40:52,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:52,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 23:40:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:52,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-11 23:40:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:52,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 23:40:52,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:52,914 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-11 23:40:52,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:40:52,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501764051] [2024-10-11 23:40:52,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501764051] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:40:52,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991050267] [2024-10-11 23:40:52,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:40:52,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:40:52,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:40:52,916 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:40:52,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 23:40:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:40:53,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-11 23:40:53,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:41:36,130 WARN L286 SmtUtils]: Spent 7.41s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-11 23:41:57,479 WARN L286 SmtUtils]: Spent 9.32s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)